To access the host storage from the guest VM, we need to setup one-time configuration. First, find out the current configured value:
multipass get local.privileged-mounts
If it is false, then set the value to true:
multipass set local.privileged-mounts=true
Then, share the host's local folder (c:\Temp) to guest VM. And check if it is successful.
multipass mount c:\temp jimny:temp
multipass info jimny
multipass umount jimny:temp